linux-kernel - [PATCH] x86/Hyperv: Fix check of return value from snp_set

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Message-Id: <20250313085217.45483-1-ltykernel@gmail.com>
Date: Thu, 13 Mar 2025 04:52:17 -0400
From: Tianyu Lan <ltykernel@...il.com>
To: kys@...rosoft.com,
	haiyangz@...rosoft.com,
	wei.liu@...nel.org,
	decui@...rosoft.com,
	tglx@...utronix.de,
	mingo@...hat.com,
	bp@...en8.de,
	dave.hansen@...ux.intel.com,
	x86@...nel.org,
	hpa@...or.com
Cc: Tianyu Lan <tiala@...rosoft.com>,
	linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH] x86/Hyperv: Fix check of return value from snp_set_vmsa()

From: Tianyu Lan <tiala@...rosoft.com>

snp_set_vmsa() returns 0 as success result and so fix it.

Cc: stable@...r.kernel.org
Fixes: 44676bb9d566 ("x86/hyperv: Add smp support for SEV-SNP guest")
Signed-off-by: Tianyu Lan <tiala@...rosoft.com>
---
 arch/x86/hyperv/ivm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c
index ec7880271cf9..77bf05f06b9e 100644
--- a/arch/x86/hyperv/ivm.c
+++ b/arch/x86/hyperv/ivm.c
@@ -338,7 +338,7 @@ int hv_snp_boot_ap(u32 cpu, unsigned long start_ip)
 	vmsa->sev_features = sev_status >> 2;
 
 	ret = snp_set_vmsa(vmsa, true);
-	if (!ret) {
+	if (ret) {
 		pr_err("RMPADJUST(%llx) failed: %llx\n", (u64)vmsa, ret);
 		free_page((u64)vmsa);
 		return ret;
-- 
2.25.1